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Slackware Mozilla Thunderbird Important Security Fix 2026-168-04

slackware
Calendar Grey June 17, 2026
Dist Slackware Esm H88
Security update for mozilla-thunderbird in Slackware 15.0 to address critical issues. Upgrade recommended to maintain system integrity.
New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues.

Summary

Here are the details from the Slackware 15.0 ChangeLog: patches/packages/mozilla-thunderbird-140.12.0esr-i686-1_slack15.0.txz: Upgraded. This release contains security fixes and improvements. For more information, see: https://www.mozilla.org/en-US/thunderbird/140.12.0esr/releasenotes/ https://www.mozilla.org/en-US/security/advisories/mfsa2026-61/ https://www.cve.org/CVERecord?id=CVE-2026-12289 https://www.cve.org/CVERecord?id=CVE-2026-12290 https://www.cve.org/CVERecord?id=CVE-2026-12291 https://www.cve.org/CVERecord?id=CVE-2026-12292 https://www.cve.org/CVERecord?id=CVE-2026-12294 https://www.cve.org/CVERecord?id=CVE-2026-12295 https://www.cve.org/CVERecord?id=CVE-2026-12298 https://www.cve.org/CVERecord?id=CVE-2026-12296 https://www.cve.org/CVERecord?id=CVE-2026-12297 https://www.cve.org/CVERecord?id=CVE-2026-12299 https://www.cve.org/CVERecord?id=CVE-2026-12329 https://www.cve.org/CVERecord?id=CVE-2026-12302

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical software update security fix slackware mozilla thunderbird

Where Find New Packages

Thanks to the friendly folks at the OSU Open Source Lab (http://osuosl.org) for donating FTP and rsync hosting to the Slackware project! :-)
Also see the "Get Slack" section on http://slackware.com for additional mirror sites near you.
Updated package for Slackware 15.0: ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/mozilla-thunderbird-140.12.0esr-i686-1_slack15.0.txz
Updated package for Slackware x86_64 15.0: ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/mozilla-thunderbird-140.12.0esr-x86_64-1_slack15.0.txz
Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-140.12.0esr-i686-1.txz
Updated package for Slackware x86_64 -current: ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-140.12.0esr-x86_64-1.txz

MD5 Signatures

Slackware 15.0 package: 51bc5915be253647cb39276630a60a12 mozilla-thunderbird-140.12.0esr-i686-1_slack15.0.txz
Slackware x86_64 15.0 package: 639beeba12f6b6eb1517e088e36949e1 mozilla-thunderbird-140.12.0esr-x86_64-1_slack15.0.txz
Slackware -current package: d6725be0ff75f5bba020d56074ca403d xap/mozilla-thunderbird-140.12.0esr-i686-1.txz
Slackware x86_64 -current package: f09ea6bec45ad46b5c0497f56b26393b xap/mozilla-thunderbird-140.12.0esr-x86_64-1.txz

Severity
critical
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory critical software update security fix slackware mozilla thunderbird

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Installation Instructions

Installation instructions: Upgrade the package as root: # upgradepkg mozilla-thunderbird-140.12.0esr-i686-1_slack15.0.txz

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